Accordion



July 16, 1940s s, RABUAZZO 2,208,228

` ATTORNEY July 16. 1940- s. RABuAzzo ACCORDION Filed Oct. 26, 1937 3 She`ets-Sheet 2 INVENTOR SA LVATOEE BUAZZO TTORNEY July 16, 1940. s, RABUAZZO 2,208,228

AccoRDIoN Filed Oct. 26, 1937 3 Sheets-Sheet I5 TORNEY Patented July 16, 194@ UNITED srArss incazza rarssr orrica 15 Claims.

This invention relates to accordions. It is particularly directed to means for controlling the slide valves for the wind cells oi the accordion,

and for indicating the positions of said valves.

An object oi this invention is to provide in an accordion, highly improved means for controlling the slide valves to either open or close the same, in many combinations or all together, the control means being so located on the accordion as to be 10 easily accessible to the ngers oi the player without 'removing the hand from the keyboard while the accordion is being played.

A further object of this invention isto provide in an accordion of the character described highly f improved means to indicate Whichof the slide valves are open or closed. I

Yet another object of this invention is to provide in an accordion of the character described,

a strong, rugged and durable mechanism 'for con- In the accompanying drawings,` in which is shown one of the Various possible lillustrative em- 35 bodiments of this invention,

Fig. 1 is a top plan'view of an accordion embodying the invention;

Fig. 2 is a partial, cross-sectional line 2-2 of Fig. l;

Fig. 3 is a top plan View oi the accordion with the top cover removed to show the interior construction; f

Fig. 4 is-a cross-sectional View taken on line 4-4 of Fig. 2;

Fig. 5 is a cross-sectional View taken onv line 5 5 of Fig. 2;

Fig. 6 is ya View similar to Fig. 2, but showing the opposite side of the control mechanism;

Fig. 7 is a crosssectional View taken on line 1-1 or Fig. 6; and

Fig. 8 is an enlarged, vertical, crosssectiona View of one oi the indicators.

Referring now in detail to the drawings, ISI designates an accordion embodying the invention and comprising a top main section l i and bellows View taken on trolling the slide valves for the Wind cells, which l ing all of said slide valves.

l2 connected thereto in the usual manner. Said section ll has parallel side walls lla and lib, and parallel end walls I Ic and lid. The top rim Y edge of section H has an inner shoulder lie supporting a metal plate 20h closing the top of said section.

v Attached to the underside of plate 25h, and extending the length of section Il is a `layer of sheet 20a of felt or the like padding material. Sheet 26a, extends at one side edge to Wall lib of section il, but the other side edge thereof terminates short of wall lla, as shown in Fig, 5. Extending from the main body Il adjacent wall lla, is .a keyboard I4. Within the body il and beneath sheet 20a are blocks of wind cells i5 of usual construction, each being divided by a central partition I6. side walls il carrying usual reeds i8. For the purpose of illustration, four blocks of Wind cells are shown each divided by the partition lli, making altogether eight substantially parallel rows 22 of said wind cells. At the top of the wind cells is a plate 2D formed with eight rows of spaced openings 2l communicating with the eight blocks of wind cells 22. Sheet 2Go, and plate '2Gb have openings 2l a, 2lb, respectively, registering with openings 2l.

' Slidably mounted on the plate 2&3, are eight slide valves designated by the letters A, B, C, D,

E, F, G and I-I respectively. The said slide valves o are elongated, iiat strips of metal, and each is formed vwith spaced openings` 23 adapted to register with the openings 2|. Each slide valve however may be moved, in the manner hereinafter described, longitudinally' to cover the openings 2l, the portions of the slide valves between the openings 23 in said slide valves being of suicient area to cover said openings 2l.

Means is provided for moving said slide valves in various combinations to open ,and closed positions and for simultaneously opening and clos- To this end, there is mounted on the top of the body il, a case, having a top Wall 26 disposed above and parallel to wall Zlib, and formed with an opening 2l covered by a perforated screen 28.

' Onplate Zb is an elongated bar 29 disposed Each block of wind cells has parallel to Wall lla. Attached to the underside l Mounted in the top of the accordion and adjacent the footof the keyboard I4, is a row of spaced, vertical, tubular members 33 extending through case 25 and yprojecting above wall 26. Said tubular members pass through openings in wall 4Gb, bar 29 and plate 2011.

member is a spring pressed plunger 3 l, a spring 32 within the tubular member serving to maintain the plunger in raised position. f Each plunger has a button at the top. As shown in Fig. 1

of the drawings, there are six plungers and hence,

six buttons, designated by numerals 33, 34, 35, 36, 3l and 38, respectively.

Pivoted to plate 43, and aligned with the keys 33, 34, and 36, are similar levers 42, 42a, B2b

and 42C, respectively, having portions 43, 43a, 43h,

. 43o, on one side of the wall 4! (between said wall il). 'upwardly extending Aspaced symmetrical fingers and the wind cells), and upwardly extending arms 44, 44a, 441),]440 on the other side ofthe wall 40 (between saidwall and wall l la of section Portions 43, 43a 43h-.43e each have a pair of 45 formed with inner shoulders 4B.

' lPlungers 3| are aligned with the pivot points for levers 42, 42a, 42h, 42o, and fingers 45 are located on opposite sides of said pivot points.

Fixedto'the bottom `end of each plunger 3l is a foot 41 contacting felt strip 40C and having a slotted portion 47a receiving a guide pin 47h fixed to wall 43. Pivoted to each foot 41 is a lever 48 having atitslower end, a pair of oppositely extending feet 49. normally vertical position,` byav piece of spring wire 5D, fixed at its upper end to the foot 41 and engaging at its lower end the bottomvend of the levers 49.

Looking at Fig. 2 of the drawings, it Willbe noted that the portion 43 of the lever 42 istilted tothe right. `Upon depressing the button 33, the yleft foot 49 will engage theshoulder 46 of the left ringer 45 and cause the lever 42`to rockin a counter-clockwise direction. This action will g cause the lever 48 to `rock about its pivot 48a in opposite directionA back'to vits .original position.

Thus, as each 'of the keys 33, 34, 35'and 35i` are repeatedly depressed their` levers 42, 42a, 4211, 42e will be rocked first in one direction, and then in the opposite direction. yStrip springs 50a attached to wall 4 engage lever arms 44,144@ 4411,

44C to hold levers 42, 42a, 42h, 42C in 4the positions to which they are moved. -.Strip Mic` serves'v as a shock absorber for feet v4l asthe plungers move up.

As shown in Figs. 3 and 6, thereis attached to the upper ends of arms 44;-, 44a, 44h, 44a-,hori- 'Vzontal connecting rods 6D, 60a, Bb, 60C, respectively. Plrotally connected to said connecting The lever 48 is held in y 2,208,228 `wall Mib is an elongated strip of felt or leather rods are links 6|, Bla, Gib, flc. The connecting rods and links are located between the walls 4l) and lia, just below plate 20h.

Attached to the inner surface of wall Ha of section lll are a pair of horizontally aligned brackets 62. Rotatably mounted in said brackets adjacent the end wall Hd of the body Il, and below the pla-te Zlla are four coextensive horizontally aligned shafts $3, 34, 65 and 66. Attached tothe shaft 53, is an arm 63a pivotally connected to link Gla. An a-rm 64a fixed to the shaft i4 is pivotally connected to the link Gla. An arm 65a xed to the shaft 35, is pivotally connected to the link Gib. An arm 65a xed to the shaft 6B, is pivotally connected to the link Blc.

Fixed to the shaft 63 are upwardly extending arms 63D and 63e pivotally engaging adjacent ends of the slide valves H and D, respectively. Fixed tothe shaft 64, are arms 64b and 64o, pivotally connected to adjacent ends of the slide valves C and G, respectively. Fixed to the shaft 65 are arms 65h and 65e, pivotally connected to adjacent ends of the slide valves F and B respec- V tively. Fixed to the shaft 63 are arms 65h and 36o pivotally connected to adjacent ends slide valves E and Arespectively.

The vmovement of the slide valves will now be described. Beginning with the slide valves all `in closed position, (the portions between the openings 23 in said slide valves covering said openings 2l, 24a, 2lb at the top of the wind cells), should the button 33 be depressed, the lever- 42 will be rocked from the position shown in Fig. 2 to cause connecting member 6,3 and the link BI to be moved longitudinally for rocking the shaft 63 of the and shifting the slide valves H vand D to open 43e are shown in position forclosing valves C,

G, A, E. Thus, each button controls a pair of slide valves. Upon depressing a button once its two slide valves open, and upon thereafter depressing the same button, its two slide valves close. In this manner the tonal harmony of the accordion may be regulated by the player..

Means is provided to indicate which pairsof the slide valves are open and which pairs are closed. To this end, there is xed within the accordion, four similar, vertical tubes 1B, 10a,

10b and 10c, located parallel and adjacent one of the tubular members 3l). Within each tube is a rod 'H connected through a link 12 to one ofthe levers42, 42a, 42h and 42e. The rods 'il slide within their tubes, and xed tothe upper ends of each'is a button. There are four buttons designated by numerals 14, 74a, '1427, 14C.

IThe first button 14, adjacent button '33, has a single marker'15. The second button 14a, ad'- jacent button 34, has two markers 76. button, 14h, adjacent button 35, has three 'markers Tl, andthe fourth button 74C, adjacent button 36, has' four markersl 13. 'Ihe positions of the levers42, 42a, 42h and 42C will control the positions of the buttons 34,14%, 'lib and 14e.

buttons will be down indicating open valves, and when tilted in the opposite direction, vsaid' buttons will be up indicating closed valves. The

The third ,4

a7() `When said levers are tilted in one direction, said buttons 14, 14a, 14h, 14a with their markers thus 1,75

Cil

indicate to the player which valves are closed and which are open. Thus, when button 14 is down it indicates that valves D and H are open. When button 33 is depressed to close said valves, button 14 goes up.

Means is provided for simultaneously opening all of the slide valves and for simultaneously closing all of said slide valves. To this end, there is fixed to the plunger or rod carrying the button 31, a bifurcated downwardly extending plate 82, receiving a guide pin 83, xed to the wall 40. Pivoted to the upper end of plate 82 is a link 84. Pivoted to the wall 40 as at 85, is a lever 86 having an arm 81 on one side of the wall 40, and an arm 89 on the other side of the wall 40. The arm 8'.' is oiset with respect to the pivot 85 and is pivotally connected as at 88 to the lower end of the link 84,

Thearm 89 has a slot 90 at its upper end, for the purpose hereinafter appearing. Slidably mounted on a pair of aligned brackets 9|, iixed to the wall 40, are a pair of parallel, horizontal coextensive bars 92 and 93, disposed side by side, closely adjacent said wall. On bar 92 is a pin 94 engaging within the slot 90 of the arm B9. As shown in the drawings, the arm 89 is normally inclined toward the end wall Hd of the accordion. When the valves are open. the lever arms 44, 44a, 44h and 44e are also tilted upwardly toward the end wall Hd. On bar 92 are four spaced pinsv95 adapted to substantially contact the lever arms 44, 44d, 44h and 44e when the slide valves are open. Upon depressing the button 31, the lever 86 will be caused to rotate about its pivot 85 in a counter-clockwise direction, looking at Fig. 2, or in a clockwise direction, looking at Fig. 6. This operation will cause bar 92 to shift to the right (looking at Fig. 6) to rotate the lever arms 44, 44a, 44h and 44e in a clockwise direction looking at Fig. 6 of the drawings, to close all of the slide valves due to engagement of pins 95 with said lever arms.

Attached to the lower end of the plunger or rod which carries the button 38, is a slotted member lll, receiving a guide pin |0| iixed to the wall 40. Pivoted to said wall, as at |02, is a lever |03 symmetrical relative to lever 85, and having an oiset arm |04. A link |05 connects the upper end of the offset arm |04 with the lower end of the slotted member |00. Lever |03 also has an arm |06 on the opposite side of the wall 40 slotted at its outer end to receive a pin |01 on the bar 93.

It will be noted that normally the lever arm |03` tilts in a direction opposite to the lever arm 89. On the bar 93 are four pins |||l located on the opposite sides of the lever arms 44, 44a, 44h and 44o. Each of said lever arms is disposed between a pin 95 on bar 92 and apin ||0 on bar 93.

As shown in Fig. 6 of the drawings, when the slide valves are all open, the levers 44, 44a, 44h and 44e contact the pins 95 but are spaced from the pins ||0. However, when the button 31 is depressed to close the valves, said lever arms will move through an angle substantially into contact with the pins |0, to close Athe valves. When the valves are closed and the button 38 is depressed, the lever arm |06 willmove in a counterclockwi'se direction looking at Fig. 6 of the drawings to shift bar 93 to the left, to rotate the lever arms 44, 44a, 44h and 44e in a counter-clockwise direction due to engagement of pins ||0 of said bar with said lever arms, to again open all of the valves. When either of the buttons 31 or 38 is released after being depressed, it moves upwardly to normal position, and its lever likewise moves back to normal position, as shown in Fig. 6.

There is thus provided means for simultaneously opening all of the valves and for simultaneously closing all of the valves.

It will be noted that upon depressing the button 31 to close all of the slide valves, the levers 42, 42a, 42h and 42e will be rocked to valve closing position, if not already in such position, causing the buttons 14, 14a, 14b and 14c to move up, if said buttons are not already in the up positions, to indicate that all of the valves are closed. Also upon depressing the button 38, to open all of the valves, all of the levers 42, 42a, 42h and 42e will be rocked to valve open position, if not already in such position, and the buttons 14, 14a, 14h and 14e will be pulled down, if not already in down position, to indicate that all of the valves are open.

It will be understood that upon depressing the button 31 only those valves which are open will be closed, and the valves which are already closed will not be affected. Similarly, upon depressing the button 38 only the valves which are closed will be open and the other valves will not be changed.

It will also be understood that the buttons 33, 34, 35 and 35 may be operated without aiecting the buttons 31, 38 or levers 86, |03 or the bars 92, 93. As shown in Fig. 6, the lever arms 44, 44a, 44h and 440 may be oscillated back and forth by depressing buttons 33, 34, 35 and 36, from valve opening to valve closing position, between the pins 95 and ||0 without moving the bars 92, 93.

Keys `pivoted to plate 26a and to rods or plungers 3| may be substituted for buttons 33, 34, 35 and 36.

It will thus be seen that there is provided a device in which the several objects of this invention are achieved, and Which is well adapted to meet the conditions of practical use.

As various possible embodiments might bemade of the above invention, and as various changes might be made in the embodiment above set forth, it is to be understood that all matter herein set forth or shown in the accompanying drawings is to be interpreted as illustrative and not in a limiting sense.

Having thus described my invention, I claim as new and desire to secure by Letters Patent:

l. An accordion having a main section, a block of wind cells thereon, a slide valve controlling the same, a plunger slidably mounted on said section, a lever pivoted to said section, means on the plunger to rock said lever alternately in opposite directions upon successively depressing said plunger, a shaft rotatably mounted within said accordion and extending at right angles to said slide valve, an arm on said shaft engaging said slide valve, a second arm on said shaft, and means for connecting said second arm to said lever, and means operable upon depressing said plunger to indicate the position of said lever.

2. An accordion having a main section, a block of wind cells thereon, a slide valve controlling the same, a wall ixed within said section, a tubular member iixed to said main section, a plunger slidably mounted in said tubular mem ber, a button on said plunger disposed above said main section, a lever pivoted to said wall, means on the plunger to rock said lever alternately in opposite directions upon successively depressing said plunger, a shaft?A rotatably mounted within said accordion and extending at vright angles to said slide valve, an arm on `said shaft engaging said slide valve, a second arm on said shaft,`means for connectingsaid second arm to said lever, a second tubular member' fixed Within said accordion and disposed parallel to the rst tubular member, a rod slidably mounted therein, a button at the top of said rod, and a link connecting saidrod to said lever.

3. An accordion having a main section, a block vof wind cells thereon, a slide valve controlling opposite directions upon successively depressing said plunger, a shaft rotatably mounted Within said accordion and extending at right angles to said slide valve, an arm on said sha-ft engaging said slide valve, a second arm `on said shaft, means for connecting said second arm to said lever, a second tubular member fixed Within said accordion and disposed parallel to the rst tubular member, a rod slidably mounted therein, a button at the top of said rod, a link connecting saidrod to said lever, a pair of tubular members xed Within said accordion and disposed'parallel to said rst tubular members, a pair of spring pressed rods therein, buttons at the upper ends of said last mentioned rods, a pair of symmetrical levers pivoted to said Wall, and having arms oiset in opposite directions, one connected by 'a link to one of said pair of rods, and the other connected by a link to the other of said pair of rods, said pair of levers having arms inclined in opposite directions, a pair of parallel bars slidably mounted on said Wall, one having a pin and slot connection with the inclined arm of one of said pair of levers, and the other having a pin and slot connection with the inclined arm of the other of said pair of levers, and pins on Said bars disposed on opposite sides of the arm of said iirst mentioned lever.

4. In an accordion, a block of Wind cells, a slide valve controlling said block of wind cells, a spring pressed button on said accordion, means for alternately opening and closing said slide valve upon successive depressions of said spring pressed button, a second spring pressed button on said accordion, means for closing said valve each time said last mentioned spring `pressed button is depressed, if said valve is not already in closed condition, and a third spring pressed button on said accordion, and means controlled by said third button for opening said slide valve upon depressing said third button, if said slide valve is not already in open condition.

5. In an accordion, a block of Wind cells, a slide valve controlling said block of Wind cells, a vspring pressed button on said accordion, means for alternately opening and closing said slide valve upon successive depressions of said` spring pressed button, a second spring pressed button on said accordion, means for closing said valve each time said last mentioned spring pressed button is depressed, if said valve is not already in closed condition, and a third spring pressed button on said accordion, means controlled by said third button for opening said slide valve upon depressing said third button, if said slide valve is not already in open condition, a fourth spring pressed button, means for moving said fourth 'spring pressed'button to one predetermined posiltion When said valve is moved to open position,

and to another predetermined position When said valve is moved to closed position.

6. In an accordion, a plurality of blocks of wind cells, a slide valve for each of said blocks, said valves being located in the same plane, a plurality of parallel shafts, perpendicular' tothe longitudinal axes of said slide valves, means for connecting each shaft to a pair of said slide valves, a Wall fixed Within'said accordion, and disposed in a plane perpendicular to said slide valves and said shafts, a plurality of similar levers pivoted to said Wall, and having arms, means connecting said arms of said levers to said shafts, for oscillating the latter upon oscillating said levers, said levers each having a portion formed with a pair of spaced fingers located on opposite sides of the pivot point for said lever, a plunger adapted to be depressed by the finger of the player, associated with each lever, and slidably mounted on said accordion, a member pivoted to-each plunger and having feet between said fingers, and adaptedto alternately engage said fingers to oscillate said lever in oppositedirections, upon said plunger being successively depressed, said pivoted members being adapted to oscillate with said levers and oppositely thereto, due to engagement of the feet of said members with the lingers of said levers', spring means for returning said plungers to normal position upon releasing linger pressure from said plungers after depressing the same, and spring means, actuable upon return of each plunger to normal position, for oscillating the members pivoted thereto, from engagement with one finger of the lever associated therewith into engagement with the other linger of said lever.

7. In an accordion, a plurality of blocks of wind cells, a slide valve vfor each of said blocks, said valves being located in the same plane, a plurality of parallel shafts, perpendicular to the longitudinal axes of said slide valves, means for connecting each shaft to a pair of Vsaid slide valves, a Wall xed Within said accordion, and disposed in a plane perpendicular to said slide valves and said shafts, a plurality of similar levers lpivoted to said Wall, andv having arms, means connecting said arms of said levers to said shafts, for oscillating the latter upon oscillating said levers, said levers each having a portion formed with a pair of spaced ngers located on opposite sides of the pivot point for said lever, a plunger adapted to be depressed by the linger of the player, associated with each lever, and slidably mounted on said accordion, a member pivoted to each plunger and having feet between said fingers, and adapted to alternately engage said fingers to oscillate said lever in opposite directions, upon said plunger being successively depressed, said pivoted members being adapted to oscillate with said levers and `oppositely thereto, due to engagement of the feet of said members with the lingers of said levers, spring means for returning saidv plungers to normal position upon releasing nger pressure from said plungers after depressing the same, spring means, actuable upon return of each plunger to normal position, for oscillating the members pivoted thereto, from engagement with one nger of the lever associated therewith into engagement with the other nger of said lever, and an indicator connected with each lever.

8.y In an accordion, a plurality of blocks of Wind cells, a slide valve for each of said blocks, said valves being located in the same plane, a

plurality of parallel shafts, perpendicular to the longitudinal axes of said slide valves, means for connecting each shaft to a pair of said slide valves, a wall fixed within said accordion, and disposed in a plane perpendicular to said slide valves and said shafts, a plurality of similar levers pivoted to said wall, and having arms, means connecting said arms of said levers to said shafts, for oscillating the latter upon oscillating said levers, said levers each having a portion formed with a pair oi spaced iingers located on opposite sides of the pivot point for said lever, a plunger adapted to be depressed by the finger of the player, associated with each lever, and slidably mounted on said accordion, a member pivoted to each plunger and having feet between said fingers, and adapted to alternately engage said fingers to oscillate said lever in opposite directions, upon said plunger being successively depressed, said pivoted members being adapted to oscillate with said levers and oppositely thereto, due to engagement of the feet of said members with the ngers of said levers, spring means for returning said plungers to normal position upon releasing iinger pressure from said plungers after depressing the same, and spring means, actuable upon return oi each plunger to normal position, for oscillating the members pivoted thereto, from engagement with one iinger of the lever associated tlierewlth into engagement with the other linger of id lever, means for simultaneously rotating all of said levers in one direction, and means for simultaneously rotating all oi said levers in an opposite direction.

9. In an accordion, a plurality of blocks of wind cells, a slide Valve for each of said blocks, said valves being located in the same plane, a plurality or parallel shafts, perpendicular to the longitudinal axes of said slide valves, means for connecting each shaft to a pair of said slide valves, a wall xed within said accordion, and disposed in a plane perpendicular to said slide valves and said shafts, a plurality of similar levers pivoted to said wall, and having arms, means connecting said arm of said levers to said shafts, for oscillating the latter upon oscillating said levers, said levers each having a portion formed with a pair or" spaced fingers located on opposite sides oi the pivot point for said lever, a plunger adapted to be depressed by the finger of the player, associated with each lever, and slidably mounted on said accordion, a member pivoted to each plunger and having feet between said ngers, and adapted to alternately engage said iingers to oscillate said lever in opposite directions, upon said plunger being successively depressed, said pivoted members being adapted to oscillate with said levers and oppositely thereto, due to engagement of the feet of said members "with the lingers of said levers, spring means for returning said plungers to normal position upon releasing iinger pressure from said plungers after depressing the same, and spring means, actuable upon return of each plunger to normal position, for oscillating the members pivoted thereto, from engagement with one iinger of the lever associated therewith into engagement with the other of said lever, means for simultaneously rotating all of said levers in one direction, means for simultaneously rotating all of said levers in an opposite direction, and an indicator connected with each lever.

1G. In an accordion, a plurality of blocks of wind cells, a slide valve for each of said blocks, said valves being located in the same plane, a

plurality oi parallel shafts, perpendicular to the longitudinal axes of said slide valves, means for connecting each shaft to a pair of said slide valves, a wall xed within said accordion, and disposed in a plane perpendicular to said slide valves and said shafts, a plurality of similar levers pivoted to said wall, and having arms, means connecting said arms of said levers to said shafts, for oscillating the latter upon oscillating said levers, said levers each having a portion formed with a pair of spaced ngers located on opposite sides of the pivot point for said lever, a plunger adapted to be depressed by the finger of the player, associated with each lever, and slidably mounted on said accordion, a member pivoted to each plunger and having feet between said fingers, and adapted to alternately engage said fingers to oscillate said lever in opposite directions, upon said plunger being successively depressed, said pivoted members being adapted to oscillate with said levers and oppositely thereto, due to engagement of the feet of said members with the fingers of said levers, spring means for returning said plungers to normal position upon releasing finger pressure from said plungers after depressing the same, and spring means, actuable upon return of each plunger to normal position, for oscillating the members pivoted thereto, from engagement with one linger of the lever associated therewith into engagement with the other finger of said lever, a pair of coextensive parallel bars disposed side by side and slidably mounted on said wall, pins on one of said bars located on one side of said arms of said levers, pins on the other of said bars located on the other side of said arms of said levers, a pair of plungers slidably mounted on said accordion and adapted to be depressed by the iingers of the player, spring means for returning said pair of plungers to normal positions upon releasing nger pressure therefrom, after depressing the same, means on one of said pair of plungers for longitudinally shifting one of said bars in one direction, upon depressing said plunger, to simultaneously rotate all of said levers in one direction, due to engagement of the pins on said bar with said arms of said levers, and means on the other of said pair of plungers for longitudinally shifting the other bar in an opposite direction, upon depressing said plunger, to simultaneously rotate all of said levers in an opposite direction due to engagement of the pins of said other bar with the arms of said levers.

ll. In an accordion having a plurality of parallel blocks of wind cells and a slide valve for each of said blocks, a plurality of levers, means for interconnecting said levers to said slide valves, a spring pressed plunger associated with each lever and adapted to be depressed by the iinger of the player, means for oscillating each lever in opposite directions upon successively depressing the plunger associated therewith, a pair of parallel bars, means for supporting said bars for longitudinal reciprocation, means on one of said bars adapted to rotate all of said levers in one direction upon slidably moving said bar longitudinally in one direction, means on the other bar to rotate said levers in an opposite direction, upon slidably moving said second bar longitudinally in a direction opposite to the direction of movement of the iirst bar, a pair of spring pressed plungers, means on one of said pair of plungers for slidably moving one of said bars, and means on the other of said pair of plungers for slidably moving the other of said pair of bars.

liliv l2. In an accordion, a slide valve, a depressiblel member, a lever, means to rock said lever alternately in opposite directions upon successively depressing said depressiblemembena shaft rotatably mounted within said accordion, an arm on said shaft engaging said slide valve, a second arm on said shaft, means for connecting said second arm to said lever, a second depressible member, a link connecting said second depressible member to said lever, a pair of spring pressed rods, a pair of symmetrical levers, one connected to one of said pair of rods, and the other connected to the other of said pair of rods, a pair of parallel bars slidably mounted on said accordion, one having a lost motion connection with one of said pair of levers, and the other having a lost motion connection with the other of said pair of levers, means on one of said bars to move the first mentioned leverin one direction only, and means on the other of said bars to move said first mentioned lever in an opposite direction only.

13.*In an accordion, a block of Wind cells, a s1ide valve therefor, a depressible member on said accordion, a lever pivoted to said accordion, means on said depressible member to rock said lever alternately in opposite directions upon successively depressing said member, a shaft rotatably mounted within said accordion and eX- tending at right angles to said slide valve, an arm on said shaft engaging said slide valve, a second arm on said shaft, means for connecting said second arm to said lever, an indicator member movably mounted on said accordion, and means to connect said indicator to said lever.

- 14. In an accordion having a block of Wind cells and aslide valve therefor, a shaft perpendicular to said slide valve, means for connecting said shaft to said slide valve, a lever pivoted to said accordion, means for connecting said lever to said shaft for oscillating the latter When said lever is oscillated, said lever having a pair of spaced fingers located on opposite sides of the pivot point for said lever, a member on said accordion adapted to be depressed by the finger of the player, a member pivoted to said depressible member and having feet disposed between said fingers and adapted to alternately engage said ngers, to oscillate said lever in opposite directions,'upon said depressible member being slic-a cessivelyV depressed, said pivoted member being adapted to oscillate With said lever, and oppositely thereto, due to engagement of the feet of said pivoted member With the fingers of said lever, spring means for returning said depressible member to normal position upon releasing nger pressure therefrom after the same has been depressed, and spring means actuable upon return of each depressible member to normal position for oscillating the pivoted member from engagement With one nger of the lever into engagement with the other finger of said lever.

15; In an accordion having a block of wind cells and a slide valve therefor, a shaft perpendiculai` to said slide valve, means for connecting said shaft to said slide valve, a lever pivoted to said accordion, means for connecting said lever to said shaft for oscillating the latter when said lever is oscillated, said lever having a pair of spaced fingers located on opposite sides of the pivot point for said lever, a member on said accordion adapted to be depressed by the finger of the player, a member pivoted to said depressible member and having feet disposed between said fingers and adapted to alternately engage said lingers, to oscillate said lever in opposite directions, upon said depressible member being successively depressed, said pivoted member being adapted to oscillate with said lever, and oppositely thereto, due to engagement of the feet of said pivoted member with the lingers of said lever, spring means for returning said depressible member to normal position upon releasing finger pressure therefrom after the same has been depressed, spring means actuable upon return of each de# pressible member to normal position for oscilrating the pivoted member from engagement with one finger of the lever into engagement with the other finger of said lever, a pair of depressible members on said accordion, means for rotating said lever in one direction upon depressing one of said depressible members, and means for rotating said lever in an opposite direction upon depressing the other of said pair of depressible members.

SALVATORE RABUAZZO. 

